Wrought-metal radiator.



No. 634,3l8. Patented Oct. 3, I899.

. F. A. WILMOT.

WRUUGH'T METAL RADIATOR.

(Application filed Mar. 21, 1899.) (N0 M 10 I 2 Sheets-Sheet .7 5 ii l w: NORRIS pzrzns o0, PHOTO-LING. wasnma'rom n. c

9 9 B 3 c 0 d e n e t a P y 0 M L w A F No. 634,3l8.

WROUGHT METAL RADIATOR.

(Application filed. Mar. 21, 1899.)

2 Shoots-Sheet 2,

(No Model.)

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UNIT D STATES PATENT Orrica- FRANK A. VVILMOT, OF BRIDGEPORT, CONNECTICUT.

wRouc HT-M ETAL RADIATOR.

SPECIFICATION forming part of Letters Patent No. 634,318, dated October 3, 1899.

Application filed March 21, 1899. Serial No. 709,942. (No model.) i

To all whom it may concern:

Be it known that I, FRANK A. WILMOT, a citizen of the United States,residing at Bridgeport, county of Fairfield, State of Connecticut, have invented a new and useful Wrought- Metal Radiator, (Case 13,-) of which the following is a specification.

My invention has for its object to provide a radiator made entirely of wrought metal which shall be adapted to take the place of the cast-metal radiators now in general use in steam and hotwater heating systems, my novel radiator being much lighter, much stronger, and much less expensive than castmetal radiators and the material being adapted to be formed to any desiredsornament-al shape or configuration, thus enabling me to produce a neat, graceful, and exceedingly attractive radiator adapted for general use either in private houses orin public buildings.

With these ends in view I have devised the novel wroughtmetal radiator which I will vnow describe, referring by letters and numbers to theaccompanying drawings, forming part of this specification, in which Figure 1 is a side elevation of a radiator consisting of six of my novel sections, two of the. pipes in the two sections toward the right and the corresponding connections being in section on the line 1 1 in Fig. 2; Fig. 2, an end elevation corresponding therewith, legs or bases by which the end sections are supported being indicated by dotted lines in both figures; Fig. 3, a plan view of one of my novel headers detached; Fig. 4, an end elevation corresponding with Fig. 3; Fig. 5, a section on the line 5 5 in Fig. 3; Fig. 6, a detail view, partly in section, the pipes being broken away at the center, showing that the upper header may be dispensed with and the upper ends of the pipes closed by caps and also showing a form of lower header in which the collars which receive the pipes are invert-edthat is, turned inward instead of extending upward from the header; Fig. 7, a detail view showing in elevation, partially broken away, an inside lower header and also showing as a modification that the collars which receive the pipes may pass within the pipes insteadjof the pipes passing within the collars, as in the other form; and Fig. 8' is a detail sectional view, on an enlarged scale, showing'the concessive operations to thedesired shape.

struction of passages through the headers for tie-rods.

A denotes the pipes of my novel radiator; B, the headers; C, the tie-rods, and D legs or bases. The pipes are of wrought metal; but the details of construction are not of the esv sence of my invention. I preferably,however,

use pipes made from sheet metal, the edges of which are secured together by clencherjoints, as in Patents Nos. 578,799,578300, and 578,801, granted to me March 16, 1897-. The legs or bases are preferably made of wrought metal and of any desired shape or configuration. For the sake of clearness I have indicated the bases by dotted lines only. It is simply essential so far as my invention is concerned that the bases and headers be independent of each other and that the bases be so constructed as to receive a header and hold it firmly. tions only of a radiator will berseated in legs or bases. If the radiator is very long, however, one or more of the intermediate sections may rest in a leg or base. The upper and lower headers may be the same so far as the principle of my invention is concerned; but

the exact shape of the headers is of course not of the essence of my invention. For ex- Ordinarily the two end secample, in Figs. 1 and 2 I have shown the upper and lower headers as differing from each other in design, although the principle is the same in both.

The essential feature of my novel header is that it is drawn and pressed to shape from a blank of wrought metal. In practice the blank of metal is cupped and drawn by suc- In the completed header the base or closed end of the cupi. a, the central portion of the blankforms the innerfacc of the header, as

at a. The edges of the open end of the cup, which are also the edges of the blank, are closed in and secured so as to form a joint 11 on the outer face of the header, this joint for security being preferably a lap-j oint, as shown in the drawings. At the bottom of the cup- 'i. 6., the central portion of the blankopenings b are punched to receive the pipes, the metal surroundin g these openings being ordinarily drawn so as to form'collars 10, which in Figs.,1 to 5, inclusive, extend upward from the header and receive the pipes within them.

In Fig. (5 I have illustrated a form of my invention applicable to steam-radiators in which the upper header is dispensed with and the upper ends of the pipes are closed by caps 12. I have also illustrated in this form as a modification a header, in this instance a lower header, in which the collars 10 instead of extending upward from the header are inverted-i. 0., turned in ward-said collars receiving the pipes as in the other form. In Fig. 7 I have illustrated a form in which the collars extend upward from the header, as in Figs. 1 to 5, inclusive, but are made smaller and are adapted to pass within the pipes instead of to receive the pipes within them, as in the other form. The shape of the collars and pipes in cross-section is of course not of the essence of my invention. In Fig. 3 I have illustrated collars made oval in cross-section to receive oval pipes, which I preferably arrange in each section, as shown in said figure, although, as already intimated, these details of construction may be varied to suit the taste of the designer or the requirements of the trade.

E denotes a main steam or water pipe threaded at its end to engage a threaded slecvel l. This sleeve is preferably made angular, as shown, to adapt it to receive a wrench, by which it may be held while pipe E is being turned to place. Sleeve 13 is secured to a radiator-section, the lower header of which is especially adapted for use as a first section of a radiator by having in its outer side an opening 14, surrounded by an outwardly-turned flange 15, and by having in its inner side an opening 16, surrounded by an outwardly-turned flange 17. Sleeve 16 is secured to a sleeve 18, which is itself provided with an ontwardly-turned flange 10, which engages the inner side of the section. Sleeve 18 is made just large enough to pass through opening 14 and flange 15, flange 19, upon the inner side of said sleeve, engaging'the inner side of the seetion,.as is clearly shown in Fig. 1.- It will of course be understood that these parts are rigidly secured together, ordinarily by the process of sweating,so called. The only dilterenee between the first section and the intermediate sections is that the lower header of each of the intermediate sections has an opening 16 in each side, each opening being surrounded by a flange 17, and the only difference between the intermediate sections and the last section is that the lower header of the last section has an opening 16 in its inner side only.

The mode in which the sect-ions are connected together at the bottom or at both bottom and top, if preferred,is clearly illustrated in Fig. 1, in which figure I have shown the sections as connected together at top and bottom, as would ordinarily be the ease in hotwater radiators, but would not ordinarily be necessary with steam-radiators, it being, however, wholly immaterial, so far as my invention is concerned, whether the sections are connected at both top and bottom or only at the bottom and also whether or not upper headers are used at all.

20 denotes sleeves, having at their inner ends flanges 21, adapted to engage the inner sides of the sections, the outer ends of each pair of sleeves 20 abutting against each other.

denotes a double-taper sleeve lying within sleeves 20.

Itwill be notedin Fig. lthat sleeves 20 just pass closely through openings 16 and flanges 17, flanges 21 of said sleeves closely engaging the inner sides of the sections, and that said sleeves also closely engage the double-taper sleeve. After assembling, the parts are rigidly seeured together in anysuitable manner, as by the process of sweating, so called.

The tie-rods which connect the sections together to form completed radiators may be passed between the pipes or through the headers, as preferred. \Vhen they are passed through the headers, theheaders are provided in both sides with countersunk openings 23.

21 denotes tubes which pass through the headers and are provided at each end with flanges 25, which engage the countcrsinks surrounding openings .23, as is clearly shown in Fig. 8.

26 denotes tubes surrounding tubes 2-], the ends of which abut against and support the sides of the section.

It will be clearly understood from Fig. 8 that the flanges of tubes 24; render it impossible for collapsing of the headers to take place under anycircumstances and that tubes 26 prevent the possibility of outward expansion of the headers.

27 (see Fig. 8 in connection with Fig. 1) denotes tubes the ends of which abut against contiguous sections and register with tubes 24, through which the tie-rods pass. These tubes, in connection with the tie-rods and nuts 28 thereon, hold the sections rigidly in place and make theradiatorasa whole strong and rigid. This construction thus insures that the radiators while very much lighter than any radiators now in use having an equal amount of radiating-surface will also be very much stronger than other radiators and able to stand a much higher steam-pressure without danger of either collapsing or bursting.

As above stated, the header is formed by being cupped and drawn from a blank of wrought metal. The central continuous portion of the blank which forms the inner face of the header is also formed with openings to receive the pipes, while the edges of the blank are closed inward and joined together on the outer face of the header and the collars 10 are drawn from the central continuous portion of the blank.

Having thus described my invention, I claim 1. A radiator-section comprising a series of wrought-metal pipes and a header cupped and drawn from wrought metal, the edges of the header-blank being closed in and secured on the outer face of the header and openings being formed in the inner continuous face to receive the pipes.

22. A radiator-section comprising a series of wrought-metal pipes and a header cupped and drawn from Wrought meta1,the edges of the header-blank being closed in and secured on the outer face of the header, openings being formed in the inner continuous face thereof, and collars 10 being formed surrounding said openings.

3. A radiator-section consisting of a series of wrought-metal pipes and upper and lower headers cupped and drawn from wrought metal, the edges of the header-blanks being 

